Sizing:Standard running shoe lengthHeel: MediumMidfoot: Medium to low volumeForefoot: Medium to narrowToebox Height: Medium to lowArch Structure: MediumShoe Shape: Semi-Curved Premium comfort and exceptional cushioning keeps the ASICS Gel Nimbus 19 atop the best selling list for ASICS, continuing its tradition of success. The soft cushioning and plush feel holds up on long or short runs and partners well for recovery runs.